GHG Protocol · ISO 14064 · TCFD · CSRD compliant

The carbon accounting platform
built for serious organisations

Measure your Scope 1, 2 and 3 emissions using DEFRA 2024 factors. Trade verified carbon credits. Generate TCFD and CSRD disclosures. All in one auditable platform.

Start free — no credit cardWatch demo →
1,200+
Organisations
4.2M
tCO2e tracked
£2.1B
Credits traded
98%
Verified data
Platform preview

See CarbonLedger in action

A professional carbon accounting platform — from inventory to compliance report in minutes

carbonledger.io/dashboard/dashboard
CL
CarbonLedger
FY 2026 · Acme Corp Ltd
Carbon position at a glance
Total emissions
186.4
tCO2e
Credits retired
120.0
tCO2e
Net exposure
66.4
tCO2e
total186t
S1
S2
S3
Monthly emissions trend
tCO2e per month · FY 2026
JFMAMJJASOND
YTD
186.4t
Avg
15.5t/mo
Projected
186.4t
DEFRA 2024 factorsGHG ProtocolISO 14064TCFD compliantCSRD readyNo spreadsheets
Platform features

Everything you need to manage carbon

◈

Emission Inventory

Build your Scope 1, 2 and 3 inventory using DEFRA 2024 emission factors. Enter data monthly — totals accumulate automatically.

✓36 standard + unlimited custom activities
✓Monthly accumulation
✓DEFRA 2024 factors built in
✓ISO 14064 audit trail
⇄

Credit Marketplace

Buy and sell verified carbon credits from global projects. VCU, Gold Standard, UK ETS and EU ETS — all on one transparent platform.

✓VCU and Gold Standard credits
✓UK ETS and EU ETS compliance
✓Double-entry credit ledger
✓Credit retirement tracking
▤

Compliance Reporting

Generate TCFD and CSRD-aligned disclosures directly from your inventory and credit data. No manual formatting, no spreadsheets.

✓TCFD climate report
✓CSRD disclosure
✓GHG inventory summary
✓Carbon credit statement
⚖

Reconciliation

The only platform that presents carbon using double-entry bookkeeping. Emissions as liabilities, credits as assets.

✓Double-entry carbon ledger
✓Running balance
✓Net zero status
✓Recommended actions
∿

Analytics Dashboard

Track your net zero trajectory, monitor scope breakdowns and see your offset progress in real time with monthly trend data.

✓Net zero trajectory to 2050
✓Monthly line chart
✓Scope breakdown
✓Projected annual total
⊞

Multi-Organisation

Built for groups. Consolidate emissions across subsidiaries using operational control, financial control or equity share methods.

✓Operational control
✓Equity share method
✓Group consolidated view
✓GHG Protocol compliant
How it works

From inventory to net zero in four steps

01

Measure

Enter your activity data monthly across Scope 1, 2 and 3. Zerotrak CarbonLedger calculates your tCO2e automatically using DEFRA 2024 factors.

02

Analyse

See your emissions breakdown by scope, track your net zero trajectory and identify where to focus your reduction efforts.

03

Offset

Browse verified credits on the marketplace. Buy VCU, Gold Standard or compliance market credits to offset residual emissions.

04

Report

Generate TCFD and CSRD-aligned disclosures directly from your data. Share with investors, regulators and stakeholders.

Pricing

Simple, transparent pricing

Start free. Upgrade when you need more.

Save 20% with annual billing — Starter £79/mo · Professional £249/mo · Enterprise £649/mo
Starter
£99/mo
or £79/mo billed annually
For SMEs building their first GHG inventory and needing basic compliance reports
✓Scope 1, 2 & 3 inventory
✓36 standard + custom activities
✓Monthly data accumulation
✓GHG inventory report PDF
✓Carbon credit marketplace
✓Reconciliation ledger
✓Data quality scoring
✓2 user seats
✓Help centre & quick start
Start free trial
MOST POPULAR
Professional
£299/mo
or £249/mo billed annually
For organisations running a full carbon programme with compliance reporting and group structures
✓Everything in Starter
✓TCFD & CSRD report PDFs
✓Carbon credit statement PDF
✓Multi-entity consolidation
✓Year-on-year comparison
✓Analytics & net zero trajectory
✓10 user seats
✓API access
✓Priority support
Start free trial
Enterprise
£799/mo
or £649/mo billed annually
For large organisations and advisory firms managing multiple clients or group structures
✓Everything in Professional
✓Unlimited entities & subsidiaries
✓White-label reports
✓Unlimited user seats
✓Dedicated account manager
✓Custom onboarding session
✓SLA — 4hr response time
✓Reseller licence available
Contact us
Accountancy firms and sustainability consultants — ask about our reseller licence at £999/month covering unlimited client accounts. Get in touch →
Built on global standards

Credibility built in

Zerotrak CarbonLedger is built on the same standards used by the world's largest organisations and regulators. Every calculation is traceable, every report is auditable.

GHG Protocol
The global standard for measuring and managing greenhouse gas emissions
ISO 14064
International standard for quantification and reporting of GHG emissions
TCFD
Task Force on Climate-related Financial Disclosures framework
CSRD
EU Corporate Sustainability Reporting Directive — mandatory from 2024

Ready to take control of your carbon position?

Join over 1,200 organisations using Zerotrak CarbonLedger to measure, trade and report their carbon footprint with confidence.

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